Prosecution Insights
Last updated: May 29, 2026
Application No. 18/596,243

LIGHTING DEVICE AND METHOD FOR THE PRODUCTION THEREOF

Non-Final OA §103
Filed
Mar 05, 2024
Priority
Sep 08, 2021 — DE 10 2021 123 278.3 +1 more
Examiner
LEE, NATHANIEL J.
Art Unit
2875
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Hella GmbH & Co. KGaA
OA Round
4 (Non-Final)
63%
Grant Probability
Moderate
4-5
OA Rounds
3m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allowance Rate
516 granted / 816 resolved
-4.8% vs TC avg
Strong +22% interview lift
Without
With
+22.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
26 currently pending
Career history
857
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
88.9%
+48.9% vs TC avg
§102
5.6%
-34.4% vs TC avg
§112
3.8%
-36.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 816 resolved cases

Office Action

§103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Response to Amendment The amendment filed on 23 December 2025 has been entered. Response to Arguments Applicant's arguments filed 23 December 2025 have been fully considered but they are not persuasive. Applicant argues that Jian, even in combination with Biecker, does not describe a longitudinal segment that includes an optical element on one side and that is bonded or otherwise joined to a lateral segment on an opposite side. The examiner disagrees. Jian teaches a longitudinal segment 140 which has an optical element 150 on one side and is bonded to a lateral segment 100 or 130 on the other. Applicant argues that the lighting device of amended claim 1 does not require multiple, separate layers to achieve the diffusion, focusing, or mixing of light within the longitudinal segment and conduction of the light into the lateral segment. The examiner disagrees. Applicant is claiming ‘at least one’ longitudinal segment, which does not exclude multiple layers. Applicant argues that the prior art teaches that the longitudinal segment is formed with both the optical element and the light transfer region via injection molding of the lateral segment with the longitudinal segment. The examiner disagrees. The method of the longitudinal segment formed with both the optical element and the light transfer region via injection molding of the lateral segment with the longitudinal segment is taught by Comstock (paragraph 39; see Fig. 4). Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1-2, 4-5, 9-10 are rejected under 35 U.S.C. 103 as being unpatentable over Biecker et al. (EP 3194847 B1) in view of Comstock et al. (US 2015/0198757 A1), Jian (US 2002/0054737 A1), and Appeldorn et al. (US 5432876). Citations to paragraph/page/lines in Biecker refer to the English translation previously made of record. With respect to claim 1: Biecker teaches a lighting device for lighting an interior (1), the lighting device comprising: at least one longitudinal segment (2) that extends along a length (15); at least one lateral segment (segments of 3, 5 in region 7) extending away from the longitudinal segment (see Fig. 1); and at least one light source (12, 13); wherein the at least one longitudinal segment has at least one light entry surface (surfaces of 3, 5 facing 12, 13) along its length and at least one light transfer region (7) through which light from the at least one light source entering the at least one longitudinal segment via the at least one light entry surface is conducted to the at least one lateral segment (see Fig. 1), wherein the at least one light transfer region and the at least one light entry surface lie opposite one another (see Fig. 1), wherein the at least one lateral segment is flat (paragraph 6, in the ‘side-by-side’ configuration), and has at least one light-conducting fiber (4) through which light is emitted into the interior (paragraph 2), which has a first end (ends of 4 facing 12, 13) and a second end (ends of 4 facing away from 12, 13), and wherein at least one of said first end or said second end of the light-conducting fiber and the at least one longitudinal segment are materially bonded to one another along the length to form the light transfer region (paragraph 8)”. Biecker does not specifically teach that longitudinal segment is cylindrical. However, Comstock teaches a lighting device (10) with a longitudinal segment (12) which is cylindrical (see Fig. 1a, 1b). It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to implement the longitudinal segment of Biecker’s lighting device as a cylinder as taught by Comstock in order to improve coupling of light from the light source into the lateral segments by allowing for a thicker light-entrance surface than that of the flat lateral segments (Comstock paragraph 35). Biecker does not specifically teach “wherein the at least one light transfer region and the at least one light entry surface are positioned on opposite sides of the at least one longitudinal segment, wherein the at least one optical element comprises a diffusing element, a focusing lens, and/or a mixing lens and the at least one optical element is configured to diffuse, focus, and/or mix the light from the at least one light source within the at least one longitudinal segment between the at least one light entry surface and the at least one light transfer region wherein the at least one longitudinal segment has at least one optical element forming a light entry surface along its length, each optical element is positioned to align with a dedicated light source”. However, Jian teaches “wherein the at least one light transfer region (164) and the at least one light entry surface (150) are positioned on opposite sides of the at least one longitudinal segment (140), wherein the at least one optical element comprises a diffusing element, a focusing lens (15-_, and/or a mixing lens and the at least one optical element is configured to diffuse, focus (see Fig. 1), and/or mix the light from the at least one light source (170) within the at least one longitudinal segment between the at least one light entry surface and the at least one light transfer region wherein the at least one longitudinal segment has at least one optical element forming a light entry surface along its length (see Fig. 1), each optical element is positioned to align with a dedicated light source (see Fig. 1)”. It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to implement the longitudinal segment of Biecker’s lighting device with the optical elements aligned with dedicated light sources taught by Jian in order to focus the light from the light sources into the optical fibers with the optical element (Jian paragraph 40). Biecker does not specifically teach “wherein a plurality of deflection elements are positioned along the at least one light- conducting fiber”. However, Appeldorn teaches “wherein a plurality of deflection elements (4) are positioned (see Fig. 9) along the at least one light- conducting fiber (38)”. It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to modify the lighting device of Biecker with the deflection elements of Appeldorn in order to divert a portion of the light propagating through the fiber out of the fiber (Appeldorn column 7 line 63-column 8 line 3). With respect to claim 2: Biecker in view of Comstock, Jian, and Appeldorn teaches “The lighting device according to claim 1 (see above)”. Biecker teaches “wherein the at least one lateral segment is a fiber-optic fabric containing the at least one light-conducting fiber (paragraph 25)”. With respect to claim 4: Biecker in view of Comstock, Jian, and Appeldorn teaches “The lighting device according to claim 1 (see above)”. Biecker does not specifically teach “wherein a second longitudinal segment is formed on the second end (E2) of the at least one light-conducting fiber of the at least one lateral segment, wherein the second longitudinal segment also has at least one light entry surface along the length (L) of the second longitudinal segment for the light from a light source”. However, Comstock’s Fig. 9 embodiment teaches forming longitudinal segments (12) on both sides of the lateral segment (18). It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to modify the lighting device of Biecker by forming longitudinal segments on both sides of the lateral segments as taught by Comstock in order to receive light from an additional set of light sources (Comstock elements 16, Fig. 9). With respect to claim 5: Biecker teaches “a method for the production of a lighting device (method of making 1), the method comprising the following steps: providing an injection mold that has at least one cavity (paragraph 30), with a length (15), which is to be filled with an injection molding material (paragraph 30); providing a flat lateral segment (3, 5) that contains at least one light-conducting fiber (4), which has a first end (end of 4 in region 6) and a second end (end of 4 in region 7); placing the at least one of the first end and the second end of the light-conducting fiber into the at least one cylindrical cavity along the length (paragraph 30; see Fig. 1); injecting the injection molding material into the at least one cavity (paragraph 30) to obtain a longitudinal segment (2) and to obtain at least one light transfer region between the lateral segment and the longitudinal segment (see Fig. 1); and placing at least one light source (12, 13) along the length of the longitudinal segment, which lies opposite the light transfer region (see Fig. 3)”. Biecker does not specifically teach that the cavity for making the longitudinal segment is cylindrical. However, Comstock teaches a lighting device (10) with a longitudinal segment (12) which is produced by a cylindrical cavity (see Fig. 5). It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to produce the longitudinal segment of Biecker’s lighting device as a cylinder as taught by Comstock in order to improve coupling of light from the light source into the lateral segments by allowing for a thicker light-entrance surface than that of the flat lateral segments (Comstock paragraph 35). Biecker does not specifically teach “selectively positioning at least one deflection element along the at least one light- conducting fiber”. However, Appeldorn teaches “selectively positioning (see Fig. 9) at least one deflection element (4) along the at least one light- conducting fiber (38)”. It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to modify the method of making Biecker’s lighting device by adding selectively positioned deflecting elements to the fiber as taught by Appeldorn in order to in order to divert a portion of the light propagating through the fiber out of the fiber (Appeldorn column 7 line 63-column 8 line 3). Biecker does not specifically teach “forming at least one optical element along the length (L) of the longitudinal segment on an opposite side of the longitudinal segment from the at least one light transfer region; and placing at least one light source along the length (L) of the longitudinal segment, which faces the at least one optical element on the opposite side of the longitudinal segment from the at least one light transfer region, wherein the at least one optical element is positioned in a beam path from the at least one light source and is configured to diffuse, focus, and/or mix light from the at least one light source within the longitudinal segment”. However, Jian teaches “forming at least one optical element (150) along the length (L) of the longitudinal segment (140) on an opposite side of the longitudinal segment from the at least one light transfer region (164); and placing at least one light source (170) along the length (L) of the longitudinal segment (see Fig. 1), which faces the at least one optical element on the opposite side of the longitudinal segment from the at least one light transfer region (see Fig. 1), wherein the at least one optical element is positioned in a beam path (dotted lines; Fig. 1) from the at least one light source and is configured to diffuse, focus (see Fig. 1), and/or mix light from the at least one light source within the longitudinal segment (see Fig. 1)”. It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to implement the longitudinal segment of Biecker’s lighting device with the optical elements aligned with dedicated light sources taught by Jian in order to focus the light from the light sources into the optical fibers with the optical element (Jian paragraph 40). With respect to claim 9: Biecker in view of Comstock, Jian and Appeldorn teaches “The lighting device according to claim 5 (see above)”. Biecker teaches “wherein diffusing or transparent material is used for the injection molding material (paragraph 25)”. With respect to claim 10: Biecker in view of Comstock, Jian and Appeldorn teaches “The lighting device according to claim 5 (see above)”. Biecker does not specifically teach “wherein the second end is placed in a second cavity and injection molding material is injected therein to form a second longitudinal segment and at least one more light transfer region”. However, Comstock’s Fig. 9 embodiment teaches forming longitudinal segments (12) on both sides lateral segment (18). It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to modify the lighting device of Biecker by forming longitudinal segments on both sides of the lateral segments by the injection molding method as taught by Comstock in order to receive light from an additional set of light sources (Comstock elements 16, Fig. 9). Claims 6-7 are rejected under 35 U.S.C. 103 as being unpatentable over Biecker in view of Comstock, Jian and Appeldorn as applied to claim 5 above, and further in view of Hu et al. (US 2014/0126241 A1). With respect to claim 6: Biecker in view of Comstock and Appeldorn teaches “the method according to claim 5 (see above)”. Biecker does not specifically teach “wherein the at least one cavity contains concave, convex, and/or rod-shaped form with which the at least one optical element is formed”. However, Hu teaches a lighting device comprising a longitudinal element (102) that has concave shapes (104) formed along it’s length that would require corresponding convex shapes in the mold cavity that formed them. It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to modify the lighting device of Biecker by forming concave shaped optical elements as taught by Hu along the length of the longitudinal element formed by the injection molding method in order to diffuse and make uniform the light entering the light entry surface (Hu paragraph 37). With respect to claim 7: Biecker in view of Comstock, Jian and Appeldorn teaches “the method according to claim 5 (see above)”. Biecker does not specifically teach “wherein the injection molded longitudinal segment is subsequently processed to form the at least one optical element along the length”. Hu teaches “wherein the injection molded longitudinal segment (102) is subsequently processed (paragraph 33) to form the at least one optical element (104) along the length”. It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to modify the lighting device of Biecker by forming concave shaped optical elements as taught by Hu along the length of the longitudinal element formed by the injection molding method in order to diffuse and make uniform the light entering the light entry surface (Hu paragraph 37). Claim 11 is rejected under 35 U.S.C. 103 as being unpatentable over Biecker in view of Comstock, Jian, and Farrelly et al. (US 2002/0110331 A1). With respect to claim 11: Biecker teaches a lighting device for lighting an interior (1), the lighting device comprising: at least one longitudinal segment (2) that extends along a length (15); at least one lateral segment (segments of 3, 5 in region 7) extending away from the longitudinal segment (see Fig. 1); and at least one light source (12, 13); wherein the at least one longitudinal segment has at least one light entry surface (surfaces of 3, 5 facing 12, 13) along its length and at least one light transfer region (7) through which the light is conducted to the lateral segment (see Fig. 1), wherein the at least one light transfer region and the at least one light entry surface lie opposite one another (see Fig. 1), wherein the at least one lateral segment has at least one light-conducting fiber (4) through which light is emitted into the interior (paragraph 2), the at least one light-conducting fiber including a first end (ends of 4 facing 12, 13) and a second end (ends of 4 facing away from 12, 13), wherein at least one of the first end and the second end is at least formed in the longitudinal segment via an injection molding process (paragraph 30), thereby forming the at least one light transfer region (see Fig. 1). Biecker does not specifically teach that longitudinal segment is cylindrical. However, Comstock teaches a lighting device (10) with a longitudinal segment (12) which is cylindrical (see Fig. 1a, 1b). It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to implement the longitudinal segment of Biecker’s lighting device as a cylinder as taught by Comstock in order to improve coupling of light from the light source into the lateral segments by allowing for a thicker light-entrance surface than that of the flat lateral segments (Comstock paragraph 35). Biecker does not specifically teach “wherein the at least one longitudinal segment has at least one optical element forming at least one light entry surface along the length wherein the at least one light transfer region and the at least one light entry surface are positioned on opposite sides of the at least one longitudinal segment, wherein the at least one optical element comprises a diffusing element, a focusing lens, and/or a mixing lens and the at least one optical element is configured to diffuse, focus, and/or mix the light from the at least one light source within the at least one longitudinal segment between the at least one light entry surface and the at least one light transfer region”. However, Jian teaches “wherein the at least one longitudinal segment (140) has at least one optical element (150) forming at least one light entry surface along the length (see Fig. 1), wherein the at least one light transfer region (162) and the at least one light entry surface (150) are positioned on opposite sides of the at least one longitudinal segment (see Fig. 1), wherein the at least one optical element comprises a diffusing element, a focusing lens (see Fig. 1), and/or a mixing lens and the at least one optical element is configured to diffuse, focus (see Fig. 1), and/or mix the light from the at least one light source within the at least one longitudinal segment between the at least one light entry surface and the at least one light transfer region (see Fig. 1)”. It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to implement the longitudinal segment of Biecker’s lighting device with the optical elements aligned with dedicated light sources taught by Jian in order to focus the light from the light sources into the optical fibers with the optical element (Jian paragraph 40). Biecker does not specifically teach “wherein at least one of the first end and the second end is at least partially melted in the longitudinal segment”. However, Farrelly teaches a method by which the end of a fiber (300) is partially melted (paragraph 42) into a longitudinal segment (302). It would have been obvious at the time the application was effectively filed for one of ordinary skill in the art to modify the lighting device of Biecker by melting the ends of the fibers into the longitudinal segment as taught by Farrelly in order to form a bond that is capable of retaining both mechanical and optical integrity without needing additional coupling components (Farrelly paragraph 30). Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to NATHANIEL J. LEE whose telephone number is (571)270-5721. The examiner can normally be reached 9-5 EST M-F. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, ABDULMAJEED AZIZ can be reached at (571)270-5046. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /NATHANIEL J LEE/Examiner, Art Unit 2875 /ABDULMAJEED AZIZ/Supervisory Patent Examiner, Art Unit 2875
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Prosecution Timeline

Show 4 earlier events
Aug 18, 2025
Request for Continued Examination
Aug 19, 2025
Response after Non-Final Action
Sep 10, 2025
Non-Final Rejection mailed — §103
Dec 23, 2025
Response Filed
Jan 14, 2026
Final Rejection mailed — §103
Mar 31, 2026
Response after Non-Final Action
May 12, 2026
Request for Continued Examination
May 17, 2026
Response after Non-Final Action

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Prosecution Projections

4-5
Expected OA Rounds
63%
Grant Probability
85%
With Interview (+22.0%)
2y 6m (~3m remaining)
Median Time to Grant
High
PTA Risk
Based on 816 resolved cases by this examiner. Grant probability derived from career allowance rate.

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